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For the Inventor, By the Inventor

Fujisawa, Japan

Shigeaki Horiuchi

This inventor holds 8 USPTO granted patents. Top assignee: Isuzu Motors Limited. Active years: 1992-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeaki Horiuchi. Retrieved from https://idiyas.com/inventor/shigeaki-horiuchi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 6

Forward Citations = 127(Granted Patents)


Location History:

  • Fujisawa, JP (1992 - 1998)
  • Kanagawa, JP (1998)

Company Filing History:

goldMedal8 out of 1,291 
 
Isuzu Motors Limited
 patents

Years Active: 1992-1998

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8 patents (USPTO):Explore Patents
1. 5803361 - Fuel injector for internal combustion engines (1998-09-08),
2. 5794582 - Connecting structure of piston and connecting rod (1998-08-18),
3. 5722600 - Fuel injection device for internal combustion engines (1998-03-03),
4. 5699762 - Valve operating system for internal combustion engine (1997-12-23),
5. 5427067 - Piston and a connecting rod assembly (1995-06-27),
6. 5413074 - Piston and a connecting rod apparatus (1995-05-09),
7. 5121722 - Combustion chamber defining piston for an internal combustion engine (1992-06-16),
8. 5115725 - Piston and connecting rod assembly (1992-05-26),

Title: Shigeaki Horiuchi: Innovator in Fuel Injection Technology

Introduction

Shigeaki Horiuchi is a prominent inventor based in Fujisawa, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of 8 patents. His innovative designs focus on enhancing fuel injection systems, which are crucial for improving engine performance and efficiency.

Latest Patents

One of Horiuchi's latest patents is a fuel injector for internal combustion engines. This fuel injector utilizes the responsiveness of a piezoelectric element, combined with the leakage resistance and ease of fixing of a solenoid type fuel injection nozzle. It ensures a sufficient lift of a control piston, which is connected to a needle valve. The design includes a return spring in the fuel chamber that urges the needle valve to close, while the lift of the control piston is controlled by the piezoelectric element, which displaces according to voltage variations. The displacement is amplified through a lever and fulcrum mechanism, effectively securing the lift of both the control piston and the needle valve.

Another notable patent involves the connecting structure of a piston and connecting rod in an internal combustion engine. This design features a piston with a crown portion and a skirt that forms a cavity. The connecting rod has a semicylindrical yoke portion that interacts with a guide member, ensuring smooth operation and engagement between the components.

Career Highlights

Horiuchi is currently associated with Isuzu Motors Limited, where he continues to innovate and develop advanced technologies for automotive applications. His work has significantly impacted the efficiency and performance of internal combustion engines.

Collaborations

Horiuchi collaborates with Takeshi Tokumaru, contributing to the advancement of fuel injection technologies and engine design.

Conclusion

Shigeaki Horiuchi's contributions to fuel injection technology exemplify his innovative spirit and dedication to improving engine performance. His patents reflect a deep understanding of mechanical systems and a commitment to advancing automotive engineering.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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